Not on the core, but other parts I started to get some warping. I had my PLA at 205, I tried backing it off to 185 and had less warping. My thinking was that there was less thermal change going on.
The core I did print at 205 but I printed in the summer and the room was cooking hot so I didn’t experience any warping.
When I was printing the SKR PRO Case I got a lot of warping till I added a 5m skirt and backed the PLA temp off - still printed first layer hot though.
I had to slow my print speed down for the fastest moves (infill) as my extruded started missing steps as it couldn’t get enough filament through the cooler head.